Screen for dust collectors



M. A. ElBEN SCREEN FOR DUT COLLECTORS Filed Sept. 27, 1923 2 Sheets-Sheet l Jul 22, 1924.

M. A. EIBEN SCREEN FOR DUST COLLECTORS Filed Se t. 27. 1923 2 Sheets-Sheet 2 Fig.3"- Fiq. 4.

Patented July 22, 1924.

UNITED STATES MICHAEL A. EIBEN, 0F CLEVELAND, OI-HO-r SGREEN FOR DUST'COLLECTO'RS'E i I l T 0 all whom-it. may concern:

Be it known that I, MICHAEL A. EIBEN, citizen of the United. States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful. Improvements in Screens for Dust Collectors, of which the following is a specification.

This invention relates to improvements in screens for dust collectors,-having for an object to provide means whereby the screens may be readily cleaned, and when necessary drained of the dust accumulated therein so as to prevent tearing or ripping of the screen. covering and eliminate pressure of the accumulated dust or other substance.

Another object is to provide a screen capable of being readily removed from its support without disturbing the remaining screen; this being often essential where one of the screens has become torn or worn out. It is likewise an object to provide a reliable and simple connection as between the screen frame and cover thereof.

Other objects will be in part obvious and in part pointed out hereinafter.

In order that theinvention and its mode of operation may be readily understood by persons skilled :in the art, I have in the accompanying illustrative drawings and in the following detailed description based thereon,

set out one possible embodiment of the same.

In these drawings: I

Fig. 1 is a partial side elevation and section showing the relative arrangement of this improved screen and its housing;

Fig. 2 is a section taken on the line 2-2 of=Fig. 1; V

Fig. 3' is a detail sectional view of the lower portion of meet the screens.

Fig. I is a section taken on the lin'e'4j4 of Fig. 3; I, N

Fig. 5 is a-detail-perspective of one of the clamping members used to assist in closing the bottom of the screen.

Fig. 6 is a view taken on the line 66 of Fig. 4.

Fig. 7 is a detail view of the upper portion of two screen sections as is partially illustrated in Fig. 2; and 1 Fig. 8 is a sectional view showing the manner in which the screen sections are supported in the housing.

Generally, in dust collectors of this type, there are employed a set of vertical screens spaced as shown in Fig. 2. Through these Application'filed September 27,1923. Serial No.1665',176 .;i v i 1 sections thev air.passesand-depositsthe dust:

uponthe outside of the cloth :or, scree11;; 0QV- ering, but as will be anticipated, a -great deal of dust will siftthrough-the cloth-and-iaccumulate in the bottom :of the screen: frame. In time, this will pile up to such an -extent as to rip or tear the cloth and necessitatethe substitution ofa new section or screem ,Even though the cloth did not. tear under .--the strain it is obvious that the sides would'zbe expanded to suchan extentas tohinderrthe proper operation of the mechanism.

Furthermore, the replacement :of zthe torn cloth, etc., as heretofore stated-necessitates days of labor of several men -inthe complete knockingdown of the set of -frames, this being necessary inorder that thes'inglescreen may be replaced or repaired. The structure of the form of dust collector-.to.:whichwmy screenis applied at.- present,v consists of a main housing 9 havingan inlet--10 on 20116 lower side for incomingvdust zladenflair; an outlet at the opposite-upper side for the exit. of clean air; filter: screens 12 for separating the dust and air, baflles 13farranged-below the screen toprimarily assist inseparation of the dust and air ahopper'l l :for-receps tion of the dustand the closure-laarranged at the lower end. iof the hopper.

The first objection, namely, the-frequent tearing of the cloth and. the undue accumulation of dust is overcome through providing the lower beam or bar .16, of each vertical screen frame, with an outlet or a set -.of iopenings 17 which are preferably though" not necessarily spaced and alined as indicated in Fig. 6. This outlet or theopenings may be covered in any of many diiferentvways, but I prefer to employ a length of felt orthe like material 18which' is retained in position through the medium of the clamping or 'retainingplate 19, this clamping means as shown comprising a length of sheet-metal substantially U-shaped in cross section, and adapted to straddle the lower beam 16, as will be seen by reference in Figs. 2 and 3. A

set of bolts 20 carried by the beam is adapted to secure this clamping plate-iii position.

It is quite obvious that through the use of a device of this character, the accumula; tion of a suflicient quantity of dust or other substance in the frames to either impair the operation of the mechanism or tear the cloth may be positively overcome.

Quite often it is possible that the cloth may become torn due to other reasons and the extended ends 23 of the top bars or beams 24 of the frames or screens are rested. lllhese ends 23 are inclined similarly to the inclination of the supporting beams 21,, and co-act therewith to receive and support substantially wedge shaped bars 25 which are :bolted as at 25 to the angle iron 22 in order to retain the set of frames in place. It is obvious that I may employ other means for. wedging the bars 25 in position.

A positive seal is provided for the upper ends of the frames through arranging thereupon strips of feltor the like 26 which are held in place by wood or metal strips 27 :upon which are secured the inner edges of the covers 28, enclosing the upper faces of the wedge bars 25. The outer edges of the covers 28 are attached to the supporting beams 21 as clearly illustrated in Fig. 8.

By reference to Figs. 2 and 7 it will be seen that each frame is a separate unit 2111(3 is readily separable from the general struc ture upon removal of the wedge bars 25 and the sealing strips shown in Fig. 8.

-Each frame consists preferably of a lower bar or beam 16 having vertical end members or studs 29, mortised on each side at the upper ends for reception of the ends of a pair of spaced beams 24. Between these beams the cleanair passes to the outlet 11. The lower corner of each top bar or beam is beveled as shown so as to receive the upper portion of the cloth or fabric covering 31 which is held thereagainst by a clamping strip 32. The cloth is carried upwardly and is secured ill/1 channel 33 in the upper face of *se id top bar.

The advantages in the use of this dust collector in which theseparate screens may be readily cleaned and easily removed in dividually for repair orreplacement are appreciated by those familiar with this type of mechanism. 7

Manifestly, the construction shown is capable of considerable modification and such modification as may fall within the scope of my claims, I consider within the spirit of my invention.

I claim:

1. In a dust collector, the combination with a housing having an air inlet and out-- let, and supports arranged upon opposite walls of the housing; of a set of dust and air separator screens, each screen comprising a pair of vertical end studs, a pair of horizontally spacedhead beams connecting the studs and secured to opposite faces and at the upper ends of said studs, said head beams having their ends extended to take over the supports, a bottom beam connecting the lower ends of the end studs and having a set of longitudinally spaced alined openings, a packing strip covering the lower side of said beam, a channel member arranged over the packing, a set of bolts extended through the beam between the openings and securing the packing and channel member in position and a fabric covering for the screen. 2. A screen for dust collectors 'as set forth, comprising vertical end studs, having mortised opposed upper ends, a pair of spaced head beams secured to the mortised upper ends of said studs, the opposite ends of each hea beam being extended beyond the studs and beveled at the upper corners, each head beam having its lowerouter lon gitudinal corner beveled, a clamping strip attachable to said longitudinal bevel and being substantially triangular in cross-section; a bottom beam connecting the lower ends of the studs and having a set of longitudinally spaced vertical outlet openings, a packing strip covering the lower side of the bottom beam, :1 channel member arranged over the packing strip, a set of bolts securing the packing strip and channel member in position and extending through the beam between said openings, and near the ends, and a fabric covering for the screen, the upper ends of said fabric being secured beneath said clamping strips.

In testimony whereof, I affix my sig nature.

MICHAEL A. menu. 

